Knife



FIG. 1 is a perspective view of the design of the present invention for a knife;

FIG. 2 is a perspective view of knife of FIG. 1 wherein the knife blade is received within the handle of a second knife of FIG. 1, the features of the second knife being shown in broken lines for illustrative purposes only and forming no part of the claimed design;

FIG. 3 is a front elevation view of the knife of FIG. 1;

FIG. 4 is a rear elevation view of the knife of FIG. 1;

FIG. 5 is a left side elevation view of the knife of FIG. 1, the right side elevation being a mirror image thereof;

FIG. 6 is a top end view of the knife of FIG. 1; and,

FIG. 7 is a bottom end view of the knife of FIG. 1. 

I claim the ornamental design for a knife, as shown and described. 